Your sleeve appears to be catching on your right shoulder which is limiting your reach back. Maybe go with an XL. Also, your face turns red near the end of the throw. I would go with a v-neck to allow for more blood circulation.

Your pause is too short indeed. With a disc that fast you should do a distance open field test where you drop the apex height in about 3' intervals to see which height goes the farthest. I would not be surprised if a lower line would go farther for you.

Flat shots need running on the center line of the tee and planting each step on the center line. Anhyzer needs running from rear right to front left with the plant step hitting the ground to the left of the line you're running on. Hyzer is the mirror of that.

Your hips turn early because of how your front foot doesn't stride forward from the side, but comes forward backwards and your shin is parallel to the ground and foot perpendicular. Your lower spine is so far forward before the plant it looks like it does a reverse pivot or sways during the throw. If you watch the top throwers they are able to stride the front foot forward gliding just above the ground more parallel. To do that you have to get in a taller/looser posture during the x-step/backswing and keep the lower spine back. Then shift the lower spine coming down to plant. Also the direction of the run-up/x-step from left to right is not as powerful as going from right to left as you can create a larger arc.

Erm if i understood correctly what you meant there is a difference to your thinking with a tip Feldy gave after his clinic because "it is too advanced" for everyone is to push the right hip forward in the reach back and after the plant yanking the upper body upright with the core muscles and i think the proper timing for that is to have that move end somewhere around the start of the pause. I think Will Shusterick showed the same move in a recent technique video.

Flat shots need running on the center line of the tee and planting each step on the center line. Anhyzer needs running from rear right to front left with the plant step hitting the ground to the left of the line you're running on. Hyzer is the mirror of that.

Mike, I've watched you throw quite a bit on video and the only thing that I ever wondered about was the height of your reach back. I think you are leaking some energy as the disc comes down to the plane of the throw. A more on plane reach back would keep everything tight from your plant foot all the way back to the disc.

There are two smaller problems that could be coming from the high reach back as well. First is that you are moving the discs through the air bottom first for a portion of your throw. That's going to slow things down a tiny bit. It's also going to cause the second thing which is the air bounce you get from a high reach back. Part of the high line height JR mentioned could be caused by this.

Granted these are all minute suggestions, but hey, I think that's all you've got left to work on. You're already killing it, not sure just how much farther you could actually throw!